What speed must the DeLorean reach to time travel in 'Back to the Future'?

In which fictional town does 'Halloween' (1978) take place? What is the name of Luke Skywalker's home planet? What is the name of the ice planet in 'The Empire Strikes Back'? What color is the pill Neo takes in 'The Matrix'? How many gigawatts of power does the DeLorean need to time travel? What is the name of the ship in 'Alien' (1979)? What is the name of the computer in '2001: A Space Odyssey'? What is the name of the artificial intelligence that turns against humanity in 'The Terminator'?